Can-cap-soldering machine



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PATENT A-o1aria 1 EDWIN NORTON AND-JOHN'G. HODGSON, OF MAYWOOD,ASSIGNORS TO SAIDNORTON, AND OLIVER W. NORTON, OF CHICAGO, ILLINOIS.

' Y CAN-CAP-soLoi-:RING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 379,976, dated March27,-1888.

v Application filed December 27, 1887. Serial No. 258.939. (No model.) y

To all whom it may concern,.- v Beit known that we, EDWINNoRroN and JOHNG. HoDGsoN, citizens of the United States, residing in Maywood, in thecounty of 5 Cook and State of Illinois, have invented a -new and usefulImprovement in Can-Cap-Soldering Machines, of which the following is aspecification. 1

Our invention relates to soldering-machines ro for soldering on the capsor final heads of filled cans, and more particularly tov improvementsupon the machine heretofore patented to us in Letters Patent No.340,148, of ,April 20, 1886. l r 5 v The object of our present inventionis to provide an automatic can-cap-soldering machine for soldering cansWith solder-hemmed caps, such as are shown and described in Patent No.364,362, granted to Edwin Norton, June 14, 2o 188'?.

' Our present improvement consists in an intermittently-movingcan-carrier having a series of can-holders at regular intervals forholding the cans with their solder-hemmed caps thereon, and aseries ofmovable heaterirons secured to a common bar or cross-head which isautomatically lifted or vibrated to intermittently move the heater-ironsinto and out of contact with the cans as they are snc-V cessivelyadvanced by the intermittently-moving carrier, and thus gradually meltthe solder strip or annulus and heat the seam by the successive contactswith the several heaterirons. It also consists in the novel devices vand novel combinations of devices herein shown and described, and moreparticularly pointedV out in the claims. v

In the accompanying drawings, which form a part of 'this specification,and in which simi- 4o lar letters of reference indicate like parts,Figure 1 is a side elevation of a machine embodying our invention. Fig'.2 is a cross-section on line 2 2 of Fig. 1.- Fig. 3 is an enlargeddetail side elevation of one of the heater-irons. Fig. 4 is a verticalcross-section Aon line 4 4 of Y Fig. 3, and Fig. 5 is an enlargedpartial crosssection on line 5 5 of Fig. l.

In said drawings, A represents the frame of the machine; B, thecan-carrier chain; B',

5o the can-holder frames or brackets thereon 5 b b',

the revolving disks or clamps Which hold the can; a a', the tracks onthe frame of the machine upon. which they carrier-chain travels; a2, thecam orguide way on the frame of the machine, which serves to press orhold the up# per revolving disk or clamp, b', down upon the can and tolift it free, from the can at the ends of the machine where the cans areplaced in and taken ont. The middle portion of the cam a2 pressesagainst the end of the spindle 6o b2 of the clamp b', and the endportion of the cam engages a shoulder or button, b3, on sald spindle.The can-holder is revolved rby a gear, b4, on the spindle b5 of thelower canholder disk, which gear meshes with the links of an endlesschain gear, C. In case other than a chain carrier be employed,the gear Cwould ofcourse, preferably, be an ordinary cast gear or rack. The chaingear C is continuously driven through sprocket-wheels c on 7o thedriving-shaft E, chain c', Wheel c2 on the shaft 03, and bevel-gears c4Lc5, the latter on the vertical shaft c6, which is furnished withadriving-gear, c7, meshing with the chain C. The

endless flexible can-carrier B is given an intermittent motion throughany suitable, mechanism-as, for example, a pitman-rod, B2, op-

erating a slidecarrying pawl which engages the chain B. All thesepartsof the machine are fully shown and described in the prior 8o patentbefore referred to, and therefore need no detailed description here. Ourpresent improvement is also equally applicable to other can-carriers ofother constructions. We have, however, shown in the drawings theconstruction we prefer to use, the same being, as we believe, the bestway now known to us for practicing our invention. y D D represent aseries of heater-irons attached equidistant apart to a common movable 9obar or frame-piece; D. The distance between the heaters D D is'the sameas the distance between the can-holders on the intermittentlymovingcan-carrier B, so that while onecan is being heatedor partially heatedby one heater the nextcan will receive heat from the next heater, &c.The bar D', as shown, inthe drawings, is furnished with sevenheater-irons, and We prefer to employ a series of heaters .of

about this number,so that the seamM or joint rool to be soldered may begradually heated, each v in part by each of the heater-irons in turn asthe carrier advances. By this means perfect soldering of every can isinsured, and the capacity of the machine is not diminished, as

seven or a series of different cans are being in part heated andsoldered simultaneously,

while a single attendant lnay place the cans in the machine for thewhole series of heaterirons.

The heater-irons are made hollow, or'with cavities d, into which flamesare projected or directed by a corresponding series of gas burners orjets, F F, arranged on the frame of the machine equidistant apart, likethe heaterirons. The heater-irons each have a curved lower end, d',corresponding to the rim of the can-cap a: orto the seam to be soldered.The heater-iron, being hollow, is thus not only heated by the flame, butit serves to direct the flame down through the same upon the seam to besoldered and upon the solder strip or annulus w', folded over the edgeof the can-cap. The heaters are all adj ustably secured to their commonoperating-bar D, so that they may be adjusted up and down to accommodatecans of diierent lengths and adjusted laterally and longitudinally inrespect to the bar D to accommodate cans or cancaps of dii'erentdiameters and to bring the heater-iron in proper position in relationtothe seam. The heater D has a bent or offset shank or arm, d, whichiits and is secured in a socket-piece or sleeve, d, by a set-screw, d.The sleeve d3 is mounted to slide freely on a vertical bar, d5, having aslot, d6, the sliding sleeve da being furnished with guide-pins di,which enter said slot, and thus prevent the sleeve d from turning onsaid bar or rod d5, and also thus limit the sliding movement of thesleeve d on said bar or rod. The rod d is adjust-ably secured in asliding bracket, d8, by a set-screw,v d", so that the rod may be movedup and down therein or turned on its axis. The bracket or slide da isadj ustably secured to the operating-bar D' by a screw, d1", whichpasses through a longitudinal slot, d, in the bar D. By this means allnecessary adjustments may be given to the heateniron's orsoldering-tools D, each one being independently adjustable, while theyhave a common operating-bar, and each tool always presses with a uniformforce-that of its own Weight-against the seam to be soldered,notwithstanding any variation in the exact height of the di'erent cansin respect to each other.

The bar D is mounted to reciprocate vertically in suitable guides, G G,secured to the frame of the machine. It is operated by a rock-shaft, H,having arms h h, connected to or passing through holes h h in said bar Dnear its ends. The rock-shaft is intermittently operated to raise andlower the heater-irons by means of a cam, K, on the shaft K', lever k,and connecting-rod k', which is connected with an arm, h, on therock-shaft H. Other equivalent means may be employed for reciprocatingthe heater-operating bar D.

The burners or gas-jets F are all connected to the gas -supply pipe Fand airsupply pipe F2.

N represents an acid or flux supply tank, and n the tube, and n thebrush for applying the acid. These parts are fully shown and describedin the Patent No. 340,148, before referred to. Other aciding or iluxingdevices may be employed, or they may be entirely omitted if the flux isembraced within the sollder annulus folded over the rim of the cancap,as is described in said Patent No. 364,362. As in said Patent No.340,148, the machine shown herein is double, each side being theduplicate of the other.

M is a pipe for jetting a blast of air upon the can for cooling thesoldered seam.

The heater-irons or soldering-tools may be made of iron, steel, copper,or other suitable metal. By calling these tools heaterdrons we do notmean that they are necessarily composed of the metal iron.-

The hollow heater-iron D is provided with an open lower end, d, topermit the flame to spread at the surface of the can, and also to admitthe air to the flame while the tool is resting upon the can. This notonly aids the combustion and the projection of the flame upon the seam,but also by admission of the air prevents injury to the can or seam bytoo great concentration of heat thereon.

The pins d7 on the sliding sleeve or arm d are somewhat smaller indiameter than the width of the slot d", in which they fit, so that thissliding arm d may, in addition to its up and-down sliding movement, havea slight rocking or radial movement on the bar di'. This is for thepurpose of permitting the heater and soldering tool D to accommodateitself to the can-cap seat or seam-groove of the can as the can revolvesin cases where the can may not be chucked exactly centrally in itsrevolving can-holder. In practice the cans will be generally so placedin the revolving can-holder that the axis of the can will approximatelycoincide with the axis of the revolving can-holder; but itwillfrequently happen that the can is placed more or less eccentrically inits revolving holder, and sometimes, too, the cancap seat or seam-groovein the head of the can, in and upon which the tool D rides, and which ittends to follow, is more or less eccentric or irregular. To compensatefor such eccentx'icity or irregularity and to permit the tool D toreadily and smoothly follow the can-cap seator seamgroove withoutstrain, and thus to do perfect work, this slight radial or rockingmovement of the tool is of value in the practical operation of themachine. The pivot upon which the tool D has this horizontal rockingmotion may of course be provided at any part of the connection betweenthe tool and its operatingbar D or its' support; so, also, in regard toits vertically-sliding movement.

1. In a soldering-machine, the combination, with a can carrier having aseries of can- IIO 379,916V v s revolving can-holders', Aofa series ofintermittently-movable heater and soldering tools, D, and a commonoperating-bar, D', to which said tools are secured, substantially asspecified.

3. The combination, with a can-carrier furnished with a series ofcan-holders, of a series of heater and soldering tools, D, and a seriesof gas burners or jets, F, for heating said tools,

c substantially as specied.

4. The combination, with a can-carrier having a series of can-holders,of a series-of hollow heaters and soldering-tools, D, and a series ofburners, F, for projecting iiame into said tools, substantially asspecified.

5. The combination, with a can-carrier having a series of can-holders,of a heater-oper ating bar, D', and a series of heater-tools, D, mountedupon and carried by said bar, said heater-tools having a free slidingconnection with said operating-bar, so that the heatertools will pressagainst the cans by their own gravity, substantially as specied.

6. The combination,with an intermittentlymoving can-carrier havinga-series of revolving can-holders, of a series of hollow heater andsoldering tools, D, and common operatingbar, D', with which said toolshave a limited sliding connection, and means for reciprocating said barto move the tools into and out of contact with the cans, substantiallyas specified.

7. The combination, with an intermittentlymoving can-carrier having aseries`of revolvingfcanholders, of avseries of hollow heater andsoldering tools, D, and common operatingbar, D', with which said toolshave a limited slidi ng connection, and means for reciprocating said barto move the tools into and out of contact with the cans, and gas burnersor jets F, for heating said tools, substantially as specitied.

8. The combination,with an intermittentlymoving can-carrier having aseries of revolving can-holders, of a series of hollow heater andsoldering tools, D, and common operatingbar, D', with which said toolshave a limited sliding connection, and means for reciprocating said barto move the tools into and out of contact with the cans, and gas burnersor jets F, Afor heating said tools, said tools D being hollow and saidburners F projecting the ame into said tools, substantially asspecified.

9. The combinaton,w ith a can-carrier having a series of can-holders, ofa heater-tool-operating bar, D', and a series of heater-tools, D,

-adj ustably` connected to said bar, substantially as specified. e n

' 10. The combination,with bar D', of a serles of heater-tools, D,having a vertically and horizontally sliding connection with saidA bar,

and a can-carrier furnished with a series of revolving can-holders,substantially as specified.

11. The combination, with a can -earrier having a series of revolvingcan-holders,`of a heating and soldering tool, D, having a sllghtrocking' or radial movement in its support to adapt said tool to ride inor followthe seam of the revolving can when said cank may-,be

placed somewhat eccentrically in its revolvl ing holder, substantiallyas specified.

12. The combinationLwith a revolving canholder, of a pivotally-mountedheater or soldering tool having a limited free rocking or radialmovement on its pivot to adapt the toolto follow the seam of therevolving can,the pivot of said tool being about parallel to the axis ofthe revolving can holder, substantially as specified. f

13. The combination, with a revolving can holder, of avertically-sliding horizontallyrocking heater or soldering tool, D,whereby the tool is adapted to press with the uniform pressure of itsown weight upon the can and to ride upon and follow the can cap seat orseam-groove when the can is placed eccentrically in its revolvingholder, substantially as specified.

14. The combinatiomwith bar D', of aseries of heater-tools, D, havingshanks d, sliding sleeves d, arms d5, and brackets ds, secured to saidbar D, substantially as specified.

15. The combination,with bar D', of a series of heater-tools, D, havingshanks d, sliding IOO sleeves d3, arms d5, and brackets d8, secured toysaid bar D', said bar D having longitudinal EDWIN NORTON. JOHN G.HODGSON.

Witnesses:

H. M. MUNDAY, R. H. MUNDAY.

IIO

